6PPD (4020) CAS 793-24-8

793-24-8 –Names and Identifiers

Name	N-1,3-dimethylbutyl-N’-phenyl-p-phenylenediamine
Synonyms	BHTOX-4020 Flexzone 7F Vulkanox 4020 Santoflex6PPD Antoxidant 6ppd Antoxidant 4020 Santoflex 134PD Antioxidant 4020 N-(1,3-Dimethylbutyl Rubber Antioxidant 4020 SANTOFLEX(R) 13 PASTILLES Rubber Antioxidant 4020PPD N-1,3-dimethylbutyl-N’-phenyl-p-phenylenediamine N-(1,3-Dimethylbutyl)-N-Phenyl-1,4-Benzenediamine N-(1,3-Dimethylbutyl)-N-Phenyl-p-phenylene Diamine N-(1,3-Dimethylbutyl)-N’-phenyl-p-phenylenediamine N-(1.3-dimethylbutyl)-N’-phenyl-p-phenylenediamine N-(4-methylpentan-2-yl)-N’-phenylbenzene-1,4-diamine 1,4-BenzenediaMine,N1-(1,3-diMethylbutyl)-N4-phenyl- N1-(4-methylpentan-2-yl)-N4-phenyl-benzene-1,4-diamine 1-N-(4-methylpentan-2-yl)-4-N-phenylbenzene-1,4-diamine 4020,N-(1,3-DiMethylbutyl)-N’-phenyl-p-phenylenediaMine
CAS	793-24-8
EINECS	212-344-0
InChI	InChI=1/C18H24N2/c/h4-12,14-15,19-20H,13H2,1-3H3
InChIKey	ZZMVLMVFYMGSMY-UHFFFAOYSA-N

793-24-8 –Physico-chemical Properties

Molecular Formula	C18H24N2
Molar Mass	268.4
Density	0.986~1.00g/cm3
Melting Point	45-46°C
Boling Point	260°C
Flash Point	204°C
Water Solubility	<0.1 g/100 mL at 17 ºC
Solubility	soluble in Methanol
Vapor Presure	5.22E-07mmHg at 25°C
Appearance	Dark brown black solid
Color	Light orange to Dark red to Black
pKa	6.73±0.32(Predicted)
Storage Condition	Keep in dark place,Sealed in dry,Room Temperature
Refractive Index	1.6300 (estimate)
MDL	MFCD00072248
Physical and Chemical Properties	Gray-black solid.
Use	Natural rubber and synthetic rubber with anti-ozone agent and antioxidant, ozone crack and flex fatigue excellent protective effect

793-24-8 –Risk and Safety

Risk Codes	R22 – Harmful if swallowed R43 – May cause sensitization by skin contact R50/53 – Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Description	S36/37 – Wear suitable protective clothing and gloves. S60 – This material and its container must be disposed of as hazardous waste. S61 – Avoid release to the environment. Refer to special instructions / safety data sheets.
UN IDs	UN 3077 9 / PGIII
WGK Germany	2
RTECS	ST0900000
HS Code	29215190
Hazard Class	9
Packing Group	III
Toxicity	LD50 oral in rat: 3580mg/kg

793-24-8 –Reference Information

purpose

the product is a polluting antioxidant, in addition to good Antioxidant efficacy, and anti-ozone, anti-bending to find the role of cracking and inhibition of copper, manganese and other harmful metals. Its performance is similar to that of antioxidant 4010NA, but its toxicity and skin irritation are smaller than 4010NA, and its solubility in water is better than 4010NA (water loss rate: 4010NA is 50%, and 4020 only 15-20%). Can be widely used in the preparation of tires, tape and many other industrial rubber products, the general dosage of 0.5-1.5%. This product is not suitable for making light-colored products due to serious pollution. Antioxidant 4020 is one of the main varieties of p-phenylenediamine antioxidant. P-phenylenediamine antioxidant is the main good varieties commonly used in rubber industry at home and abroad, and it is also the development direction of antioxidant in the future. It is an antiozonant and antioxidant for natural rubber and synthetic rubber, and has excellent protective effect against ozone cracking and flex fatigue

production method

a variety of methods can be used to prepare antioxidant 4020. Generally, 4-aminodiphenylamine is obtained by catalytic hydrocondensation with methyl isobutyl ketone. N-(1, 3-dimethylbutyl)-p-aminophenol can also be used to react with aniline at 210-230 °c under the catalysis of iron powder and iodine (or FeCI2, FeCI3), after the condensation reaction is completed, the mixture of the product is obtained by distilling off the volatile substances at 180 ° C. (133 Pa), which is divided into: N-(1, 3-dimethylbutyl)-N’-phenyl-p-phenylenediamine 50%,N,N’-diphenyl-p-phenylenediamine 17.5%,N,N’-bis (1, 3-dimethylbutyl)-p-phenylenediamine 13.4%.

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